Edward cray irwin and william george jrwin



(No Model.)

r E. C. 86 W. G. IRWIN.

WINDOW SCREEN.

No. 530,272. I Patented Dec. 4, 1894.

UNITED STATES PATENT OFFIC EDWARD CRAY IRWIN AND WILLIAM GEORGEiIRWIN,OF WINNIPEG,

' CANADA.

WINDOWPSCREEN.

SPECIFICATION torming part of Letters Patent No. 530,272, dated December4, 1894.

Application filed May 14, 1894:- Serial No. 511,220- (No model.)

To all whom it may concern:

Be it known that we, EDWARD CRAY IRWIN and WILLIAM GEORGE IRWIN,citizens of the Dominion of Canada, residing atWinnipeg, in the countyof Selkirk and Province of Manitoba, Canada, have invented certain newand useful Improvements in-Window-Screens; and we do declare thefollowing to be a full, clear, and exact description of the invention,such as will enable others skilled in the art to which t appertains tomake and use the same.

Thls invention has relation to an improvement in window screens, and ithas for its prime object to improve that class of screens in which aflexible wire screen or the like, is wound upon a roller situated in orupon the sill of the casing, by providing a durable and effective meansat a comparatively small expense which'will absolutely exclude the.entrance of flies and other insects, and which may be applied to anywindow' casing without altering its construction in any manner whateverand may be quickly attached to and disconnected from the window sashwithout removing any of the parts.

Otherobjects and advantages will appear from the following description.and claims when taken in connection with the annexed drawings, in whichFigure 1, is a vertical, cross-sectional view.

taken through v the window sill and through the sashes. Fig. 2, isafront elevation with parts in section, the section being taken in theplane y, y, on Fig. 1. Fig. 3, is a front elevation of the lower part ofthe casing and lower sash with parts broken away. Fig. 4,

is a cross-sectionalview taken in the plane indicated by the dotted line:10, m, on Fig. 2. Fig. 5, is a face view of the spring casingillustrating the journal to which the spring is at-- tached, in section.

Referring by letter to said drawings:A, indicates a window casing, and Bthe lower and O the upper sash, all of which may be of any ordinary orapproved construction.

Secured to the inner sides of the side rails a, of the window casing,are guides D. These guides may be formed from a sheet of metal .or othersuitable material, and are of a construction, as better shown in Fig. 4,of the drawings, having a slotb. In forming these guides of sheet metal,we would take a piece of material of sufficient length and width, andbend it lengthwise so as to form a flange 0, comprising two parallelbranches, for attachment to the side walls a, of the casing by means ofscrewsd, or other suitable fastening devices, and the slotted branch I),may comprise the two parallel strips e, arranged asufficient distancefrom each other to form the slot b, and the free ends of these stripsmay be turned inwardly uponthemselves as shown at f. It is obvioushowever that these guides may be formed in difierent ways and from anysuitable material, and the flanges c, being secured to the inner sidesof the casing at opposite points, the slotted guide flanges will bearranged opposite each other to receive the longitudinal edges of thescreen and also the opposite ends of a cross bar carried by said screen,as will be presently described.

E, indicates a casting, which is adapted to receive within it a coiledspring F. This casting which is of a form as better shown in Fig. 5, ofthe drawings, is secured at the base of one side of the casing and uponthe sill and one end of the coiled spring is secured to said casting, asshown at g, the opposite end being secured to the spindle h, of a rollerG.

"This roller G, may be of the ordinary construction as employed inrollers, carrying at one end the plate H, from which extends the angularstud or journal h, and the opposite end of the roller has secured to ita stud plate 1 the stud of which takes into a socket in the plate k,which is secured to the opposite inner side of the window casing asshown. This roller carries a screen I, which is secured at its lower,transverse edge to the roller, and secured to the opposite or uppertransverse edge of the roller is a bar J. This bar J, is adapted to-besecured to the lower rail of one of the sashes,and its opposite ends areadapted to pass into the guide slots 12, of the guides secured to thewindow casing, as shown in Fig. 4, of the drawings, and the edges of thescreen are also carried into said guides so as to absolutely prevent theentrance of flies or other insects to the room.

K, indicates a plate, which is designed to cover the spring casing E,and consequently the spring therein. This plate is provided on its outerside with two parallel, curvilinear flanges j, which are designed toform a guide way or receiver for a quadrant-shaped cover L. This coveris designed to conceal the roller and screen thereon,and is provided atone end with a flange M, for attachment to one side of the window casingand it is furthermore provided with a longitudinal base flange l, forattachment to the sill by means of screws, or the like. The upper,longitudinal edge of this quadrant-shaped cover is turned upwardly andoutwardly as shown at m, and is arranged in the path of movement of astop or hook N, secured to the outer side of the cross bar J ,of thescreen,for a purpose which will presently appear.

In placing our improvements on a window casing, the socket plate 70,should be secured just above the sill to one side of the casing, and thespring casing E, secured to the opposite side just above the sill withthe spring in position. The roller should then be placed with one end inthe socket plate and the opposite end receiving the angular stud orjournal h. The cross-bar being secured to the outer, transverse edge ofthe screen should be placed in the guide-ways D, secured vertically tothe opposite inner sides of the windowcasing. The plate K, having beenplaced over the springcasing E, the quadrant-shaped cover is theninserted at one end between the flangesj,of the plate K, and theopposite end and lower, longitudinal edge are both secured to the sideof the casing and sill, respectively. Now then when it is desirable toraise the sash, it will be seen that the screen will fill the opening,as the sash has been raised, and the weights for the sashes might bemade to hold the same at any desired point or in some cases a fastenermight be employed for securing the sash in such open position.

In some seasons of the year when it is not desirable to use the screen,it is simply necessary to detach the cross bar J, from the lower rail ofthe sash, when the hook N, on said cross bar will engage the upperlongitudinal edge m, of the quadrant shaped coverand will hold thecross-bar and consequently the spring in a convenient position for readyattachment to the sash when desired, and will also keep the screen frompassing entirely into the casing.

While we have shown and described this screen, as arranged on the innersill, and attached to the lower sash, it is obvious that it can beplaced on the outer sill and secured to the outer side of the lower sashrail or it can be secured to the rail of the upper sash if desired.

It will be observed that the parts are all of a cheap and durableconstruction, there is nothing about the device to get out of order, andtheimprovements can be attached to any window casing and sash withoutdisfiguring any of the parts or altering their construction in anymanner whatever.

Having described our invention,what we claim, is-

1 The combination with a window casing and a slidable sash arrangedtherein; of the vertical guides secured to the inner sides of theuprights of the frame, the casing E, se-

cured to the inner side of one of the uprights, the plate It, connectedto the inner side of the other upright and having a socket, the rollerG, having a stud at one end journaled in the socket of the plate It, andhaving aspindle at its opposite end, the coiled spring arranged in andconnected at one end to thecasing E, and connected at its oppositeendtothe spindle of the roller G, the plate K, covering the casing E, andhaving the parallel, curvilinear guides or flanges, the qnadrantshapedcover resting at one end between the guides or flanges of the plate K,and having the base flange Z, connected to the window sill, and the endflange M, connected to the inside of one of the uprights of theframe,and also havingits upper edge curved or turned upwardly andoutwardl y, the bar J, connected to the sliding sash and having the hookor projection adapted to engage the quadrant shaped cover, and thescreen connected to the roller G, and to the bar J, and adapted to slidetogether with said bar between the guides on the uprights ofthe casing,substantially as and for the purpose set. forth.

2. The combination with a window casing, a slidable sash arranged insaid casing and a screen connected to and adapted to move with saidsash; of the vertical guides D, connected to the inner sides of theuprights of the casing and respectively formed of a single piece ofsheet metal bentlengthwise so as to form a flange 0, comprising twoparallel branchesand designed for the passage of attaching nails orscrews and the parallel strips e, disposed at right angles to the flangec, and having their free endsf, bentinwardly upon themselves, the saidends f, being adapted to rest close against opposite sides of thescreen, the edge of which rests loosely between the unbent portions ofthe strips 6, substantially as and for the purpose set forth. a

In testimony whereof we affix our signatures in presence of twowitnesses.

EDWARD CRAY IRWIN. WILLIAM GEORGE IRWIN.

Witnesses:

JOSEPH LITTLE, JOSEPH IRWIN.

ICC

